Improvement in grain-drills



2 Sheets-Sheet l.

T A. HILL. V GRAIN-DRILL.

Patents& Feb. 29, 1876.

` ATTomEvs.

N.PETERS, PHOTO-UTHDGRAPNEE WASHINGTON. D. 04

. ZSheets-SheetZ. T. A. HILL.

` GRAIN-DRILL; No. 74,z4z. Patenta& Feb. 29,1876.

WITNESSES:

N. PETERSV FHOTO-LITHOGRAPHER. WASNINGTON. D C.

by a lever, d, attached to a sliding collar, X

Umm STATES TRUMAN A. HILL, OF J EFFERSON CITY, MISSOURI, ASSINGNOB TO' HIMSELF AND JOSEPH H. BODINE, OF SAME PLACE.

mmm om r;

I i IMPROVEMENT lN GRAlN-DRlLLS.

Specification forming part of Letters Patent N o. [74;242, dated February 29, 1'876; application filed To all whom it may concern Be it known that I, TRUMAN A. HLL, of J efferson City, in the countyof Cole and State of Missouri, have invented a new and Improved Grain-Drill; and I do hereby declare tails of the clutch for the rock-bars; Fig. 3,

detail of the registering device; Fig. 4, detail of the seeding devices; Fig. 5, a transverse vertical section of the drill Fig. 6, details of the bifurcated wedge Fig. 7, details of seedwheel clutch.

This invention` relates to certain improvements in grain-drlls and it consists in such a pecular Construction and arrangement of parts as will first be fully described, and then pointed out in the claims.

In the 'drawin g, A represents the main frame, and B the grain-box, of the drill. G G' are the two rock-bars, which are connected with the Suspended spouts D by'connectingrods E, one-half of the said spouts being connected with the bar C, and the alternating ones with the bar G'. Said bars are pivoted at a to' the main frame, and are provided with toothed segments b, which mesh, so 'that a rocking motion, imparted through pitman c to one of the bars, causes them to oscillate in opposite directions and the alternatin g spouts to be reciprocated accordingly. The object of this movement of the spouts is to clear the line of seeding from clods and make the drilling uniform; F is a dog-wheel upon the shaft of the main drivingwheels, which meshes with a cog-wheel, G. Said wheel is loosely journaled upon a short shaft, H, but is adapted to carry the said shaft with it in its revolution by reason of the double clutch I, which gear-s with a clutch on the wheel,-and is connected with shaft `H through a groove and spline. Said clutch is operated from the rear 7 and is made double, so that when it break s the connection with the wheel it locks the shaft H with the toothed hearing J, to pre- -upon the shaf't of' one of the driving-wheels, I

which turns the pinion e of a vertical shaft, .carrying at its upper end a worm, f. This worn meshes with aog-wheel, g, which has .a worm, h, and this in turn rvolves a pinion, i, upon the shaft which carries the index-hand j 'around the 'graduated diel-face Ic.

By this arrangement the revolution of the miin wheels is recorded in a greatly diminished proportion and the length of the drill being known, the amount of ground seeded may be ascertained.. The pinion 6 is arranged in a mova ble hearing, l, which is provided with an arm, m. This arm is attached to and moves with a crank-bar, M, to which the spouts are suspended, so that whenever the bar is raised to elevate the spouts when the machine is not seeding, the pinion e is removed from the worm on the axle of one of the driving-wheels, and the registration of the revolutions of the latter is stopped. 4 r

In the bottom of the grain-box B are arrangecf the seeding devices, which consist of a series of wheels, n, having side recesses and revolving upon a squar'ed sha-ft which passes through all of the wheels. Said wheels are contained in a casing, o, which forms a circular channel for the passage of the grain from the grain-box to the elastic pipes N that carry the grain to the spouts. Just above the 'wheel n is placed a casting, p, which, with a pivoted gate'or cut-off, q, makes two separate channels' for the diiferent sizes of grain, either one of 'which channels may be readily closed by turning the said cut-off across the mouth of the same.

The elastic pipes N are each provided with a ring, s, with inwardly-projecting lugs, and the discharge of v the seeding devices is construeted with open grooves t and depressed seatsu, which grooves receive the lu'gs of the ring when the coupling is made, and the seats hold the same when turned to prevent the pipe from coming off.

O is the shaft actuating the seed-wheels n, which is rotated by the following mechanism: A aog-wheel, P, on the main shaft drives the wleels Q Q of which Q' meshes with and rotates a wheel, B. To the shaft of this wheel is rigidly attached a elutch, S, with which engages e loose ehteh, S', upon the shaft O to couple the shefi with the actuating meeha-uism. v

The said loose ehitoh is hahitully held against S by a spirnl spring, r, and is disengaged from the same 'by a forked or bii'ureared wedge, T, which is pivoted to the orankhar M, and effects the disengagement of the ehteh whenever the said bar is raised to stop the seeding. In the front of the gram-box is a grass-seeder, having the usual perforation and the reeiproeating bar in the bottom rhereof, the bar being operated by a connecting-rod and a pinion meshing with the mainshft wheel.

To prevent the aoeunulation of dirt upon the gearing at the ends of the box, and the eonseqient obstruction of the operation of the machine, detaehable cases are arranged to slide over and cover the same.

Having thus described my invention, what I elain as new is-` I 1. The eombination of the wheel Gr, the grooved shaft H, the double cluteh I, having inner studs, the coliar X, lever d, erank K, and pitman E, with the` rock-bars GO', attaohed to the spouts, as and for the' purpose described.

2. The combination, with the crank-har M, of the arm m, the pinion e and registering devioes, and the movab'le bearing l, substa-utielly as and for the purpose described,

3. The combination with the wheel n, having side recesses, of the casing o, piece p, and pivoted ontofl' qfsubstantially as and for the purpose described.

4. The wheel R, aetuated through a gearing by the driving-wheels, and having a ehteh, S, in eombinetion with the loose clutch S' upon the shaft O, the spring 'I', and the fo-ked wedge T, substantially as and 'for the purpose described.

5. The combination of the elastie pipe, provded' with ring s, having inwardlyprojeeting lugs, and the discharge of the seeding devioes, having grooves t, and depressed seats u, as and for the purpose specified.

TRUMAN A. HILL.

witnesses:

DAVD JAMIESON, i FREDERICK ROETZER. 

